Seam pressing machine



Feb. '28, 1933. W, P QSGQQD .1,899,050

SAM PRESSING MACHINE Filed July 30, 1950 2,2?206 for MMC?. @wl

www @1mm Patented Feb. 28, 1933 i UNITED STATES PATENT oFFicE WALTER P. OSGOOD, vOil'l MALDEN, MASSACHUSETTS, ASSIGNOR TO BOSTON MACHINE WORKS COMPANY, OF LYNN, MASSACHUSETTS, A CORPORATION OF MASSACHUSETTS p SEAM ranssrne MACHINE Application filed July 30,

The present, invention relates to seam pressingmachines which are used in the manufacture of component shoe upper parts to press the connective seams thereof.

In certain types of shoes the lining is provided with a friction surface insert which engages the back face ofthe wearers heel and holds it from sliding vertically during the act of walking. Usually the insert is located between the rear ends of a pair of quarter lining sections and is secured thereto by at least one seam forming a ridge tending to cause the wearerdiscomfort.

The principal object of the present inven- H tion is to produce a seam pressing machine which will press the seams between the lining sections and/or the insert therebetween in` an efficient manner.

To the accomplishment of this object, and

y such others as may appear hereinafter, the

various features of the invention consist in certain devices, combinations and arrangements of parts, hereinafter described and then set forth broadly and in detail in the appendi ed claimsv possessing advantages readily apparent to those skilled in the art.

The various features ofthe present invention will'be understood readily from an inspection of the accompanying drawing illustrating a generic seam pressing machine and two species thereof, in which,

Figure 1 is a view in front elevation of the seam pressing machine;

Fig. 2 is a detail view in plan of the an- Y Yvil jaw or a detail view in underside plan of the pressing Jaw.;

Fig. 3 is a detail sectional elevation on the line 3 3, Fig. 2;

Fig. 4 is a detail view in plan of the type :740 of work pressed by the specific anvil and pressing jaw illustrated in Figs. 2 and 3;

Fig. 5 is an enlarged detail view in sectional elevation on the line 5 5, Fig. 4, and

Fig. 6 is a detail view in plan of a modi- I fied form of anvil aw and the typeI of work supported thereby for the seam pressing operation.

Referring to Figs. 4 and 5 (which illustrate a piece of work the seams of which have been pressed by the seam pressing ma- 1930. Serial N0. 471,666.

chine embodying the features of one embodinent of the present invention), the quarter sections 7 and 8 of a leather' lining are connected by a lap seam 9. Interposed between the rear edges of the sections 7 and 8 is an insert 10 of some leather having a friction surface such, for instance, as a split or suede. This insert engages the back face of the heel of the wearer in the finished shoe.

The rearl and prevents vertical slipping. edge of the section 7 overlaps the insert 10 and is connected thereto by a double line of stitching 11. The rear edge of the section 8 overlaps the insert 10 and is connected thereto by a double line of stitching 12.

In order to flatten the seams 9, 11, and 12, and consolidate the'parts connected thereby into a unit uniform in thickness throughout its extent as indicated in Fig. 5, the-seams 9, 11, and 12 are placed upon a fiat surface 13 formed on an anvil jaw 14, Fig. 2. The anvil j aw 14 is mounted, like the anvil jaw disclosed in my Patent No. 1,881,414, October 4, 1932, in the seampressing machine disclosed therein and indicated generally in Fig. 1 herein.

As shown in Fig. 2 the surface 13 is curved in a horizontal plane in accordance with the curvature of the seams 1l and 12. The surface 13 is provided with an extension 15 projecting outwardly therefrom in the median line of the anvil jaw 14 to support the seam 9. Bordering the inside curve of the surface 13 is a blind recess 16, the purpose of which will be explained presently. A blind recess has one open end.

The seam pressing machine is provided with a pressing jaw 17 which is 'secured to an oscillating head 18. The pressing jaw 17 has a curved surface 19 similar tothe curved surface 13 on the anvil jaw 14, an extension 2O similar to the extension 15, and arecess 21 ly and backwardly by their respective toggle lmechanisms, disclosed in the patent hereinbefore identied, automatically and continuously to bring one pair of anvil and pressing jaws into a position of pressure and the other pair of anvil and pressing jaws into a position of clearance. The heads 18 are held stationary for an interval when the j awsare brought into their positions of pressure and clearance. During the position of clearance the operative inserts the quarter Sections 7, 8, and joined by the seams 9, 11, and 12 between the separated jaws and positionsthe seam 9 on the extension 15 and the seams 11 and 12 on the curved surface 13.

As shown in Fig. 3 the anvil and pressing jaws are heated in the same manner as the y Vcorres nding jaws in my patent hereinbeforei entified. During the position of pressure the seams are engaged by the surfaces 19 and 20 on the pressing jaw and are fiattened thereby under the combined action'of heat and heavy pressure so that the parts connected by the seams are consolidated coincidentally into a unit uniform in thickness through its extent.

Referring to Fig. 3 the blind recesses 16 and 21 receive the major portion of the insert 10 so that the friction surface thereof may not become glazed by being subjected to the combined action of heat and pressure.

. In Fig. 6 the quarter lining sections 22 and 23 are connected, respectively, by the lap seams 24, and 25, to the friction surfaced insert 26. The seams 24 and 25 are positioned, respectively, on the at faces 27 and 28 of an anvil 'aw 29 provided with a recess 30 between t e faces 27 and 28. The seams 24 and 25, supported by the anvil jaw 29, are pressed by a pressin jaw having flat vfaces lsimilar to the faces 7 and 28 on the anvil Jaw and a recess therebetween similar to the recess on the anvil jaw. The anvil jaw 29 and its cooperating pressing jaw are heated and are mounted r operation in the seam pressing machine like the jaws 14 and 17 and the corresponding jaws in the patent hereinbefore identied.

It will be apparent to those skilled in the art and with the general objects of the pres- `ture, the described and illustrated embodiments thereof being intended as exploitations of their underlying essentials, the features whereof are definitely stated in their true scope in the claims herewith.

What is claimed as new, is:

1. In a seam pressing machine, the combination with means for supporting a pair of shoe quarter sections each connected by an overlapping seam to an insert, of means for reducing the whole of said overlapping seam to the thickness substantially of one of the shoe uarter sections.

2. n a seam pressing machine, the coinbination with means for supporting a pair of shoe quarter sections articulated by :m

loverlapping seam curved in a horizontal ymeans for reducing t e whole of all the overla ping seams to the thickness substantially o one of the shoe quarter sections.

4. In a seam pressing machine for shoe upper parts the combination with an anvil jaw having a flat surface extending in a curve and a recess bounded by the curve, said recess bein closed by the curved surface onlyI at one en of a similar surface an 5. In a seam pressing machine for shoe upper parts the combination with an anvil jaw curve, said surface havin an extension rojecting outwardly there m in the me ian line of the jaw, and a recess bounded by the curve, Aof a pressing1 anvil having a similar surface, extension t ereof, and recess.

6. In a seam pressing machine for shoe upper parts the combination with an anvil jaw having a pair of converging flat surfaces and a recess bounded thereby, said recess being open at one end only, of a pressing jaw having a similar recess and a similar pair of converging surfaces.

7. In a seam pressing machine for shoe upper parts the combination with an anvil jaw having a pair of converging flat surfaces and a depressed recess therebetween, said recess being open at one end only, of a pressing jaw having a similar recess and a similar pair of conver surfaces.

In testimony whereof name to this specification.

WALTER P. OSGOOD.

(pressing anvil having a recess.

having a flat surface extending in ahave signed by- 

